../ dmsp_15_ephemeris_20150525.txt 22-Jun-2023 00:28 109469 dmsp_16_ephemeris_20150525.txt 22-Jun-2023 00:28 109596 dmsp_17_ephemeris_20150525.txt 22-Jun-2023 00:28 109592 dmsp_18_ephemeris_20150525.txt 22-Jun-2023 00:28 109538 dmsp_19_ephemeris_20150525.txt 22-Jun-2023 00:28 109552